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Data Springs Product Forums...
Forums > Product Discussion - DotNetNuke Modules > Dynamic Forms
Subject: Populate hidden field from combo box
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Author Messages
Troy
Posts:56
river guide
river guide
03/17/2008 8:11 PM  

I have a combo box that  that is populated via a sql driven query and I use two union queries to put the first two values as -select customer- and -add new customer- and the rest of the values come from the database.  If the user selects -add new customer- then I hide all of the "existing customer" form fields and display "new customer" form fields.  I would like to populate a hidden field with one of two values.  If a user selects a existing customers name (and <> '-select customer-') I want that value populated in a hidden field called FullName...if a user creates a new customer I want that name populated in the FullName hidden field (The existing customer full name value comes from a combo box and the new customer full name value comes from a textbox).  I thought it was going to be fairly easy to populate the hidden field but no such luck so far. 
Bret
Posts:6
skipping stones
skipping stones
03/18/2008 12:37 AM  

Troy

Have you tried to use the "Client side event" feature with "Pass values of this question to session variable"? I've used this to do similar ... ie put something like...

 

$(NewValue) = $(ShortName)

 

This works ... $(NewValue) is not a session variable but can be used by other questions.

 

Bret
Troy
Posts:56
river guide
river guide
03/18/2008 6:13 AM  

I have tried using client side events and it is not really working for me 100% of the time but I could be doing something wrong. So in my example above if a user selects a customer, does the client side event go on the select customer question or the hidden field. If I put something like $(NewVAlue) = $(ShortName) on the select customer question I get an error in the url from the very first question in my form which is a combo box (the select customer question is like the 3rd or 4th question on my form).... If I put something like $(NewVAlue) = $(ShortName) in a client side event on the hidden field, I only get a value in the textbox when I put the focus in that textbox otherwise no value is passed on when I submit the form. Does that make sense?
Troy
Posts:56
river guide
river guide
03/19/2008 12:21 PM  

I have several combo boxes on my form and I noticed that when I add a client event $(HiddenFiled) = $(SelectCustomer)  to my SelectCustomer question (which is like the 3rd or 4th combo box on the form) I get an error in the url.  The error occurs in the URL before I even get a chance to select anything from my Selectcustomer question and it keeps me from selecting anything in all of my visible combo boxes.  There error is at the end my url and is..... def=ErrorMessage
Chad
Posts:2271
river guide
river guide
03/20/2008 8:27 AM  
So if you remove the client event does that field then not display that error message? Sometimes client events and question events do not play well together... Is this combo box also firing off a question event as well? If so I would remove that temporarily to determine if you still get the error.

Little known secret... Add ?Debug=True or /Debug/True within your URL upon page load. This will render the exact client side code that is rendered and can often be useful in determining if a field ID did not get rendered properly etc...

The specific error message you mentioned here though sounds like it would have required a postback and like I said client side events do not always place nice with server side events.

-Chad
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Forums > Product Discussion - DotNetNuke Modules > Dynamic Forms > Populate hidden field from combo box


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